Vodafone has given lot of facilities to its users in india.but now they have given another great service,trick,BALANCE TRANSFER,yes you could transfer your balance to your friends vodafone mobile number.the method is given below

Send:
TRAN (amount u want to transfer)
(phone number of your friend)
to
144(tol free)
ex:
TRAN 20 9865795443

try it,its easy and helps at times